using System;
using Lucene.Net.Support;
using NUnit.Framework;

namespace Lucene.Net.Util.JunitCompat
{

    /*
     * Licensed to the Apache Software Foundation (ASF) under one or more
     * contributor license agreements.  See the NOTICE file distributed with
     * this work for additional information regarding copyright ownership.
     * The ASF licenses this file to You under the Apache License, Version 2.0
     * (the "License"); you may not use this file except in compliance with
     * the License.  You may obtain a copy of the License at
     *
     *     http://www.apache.org/licenses/LICENSE-2.0
     *
     * Unless required by applicable law or agreed to in writing, software
     * distributed under the License is distributed on an "AS IS" BASIS,
     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     * See the License for the specific language governing permissions and
     * limitations under the License.
     */

    using Document = Lucene.Net.Document.Document;
    using IndexWriter = Lucene.Net.Index.IndexWriter;
    using IndexWriterConfig = Lucene.Net.Index.IndexWriterConfig;
    using IOContext = Lucene.Net.Store.IOContext;
    using IndexOutput = Lucene.Net.Store.IndexOutput;
    using MockDirectoryWrapper = Lucene.Net.Store.MockDirectoryWrapper;
    /*using Assert = org.junit.Assert;
    using Test = org.junit.Test;
    using JUnitCore = org.junit.runner.JUnitCore;
    using Result = org.junit.runner.Result;
    using Failure = org.junit.runner.notification.Failure;
    using RandomizedTest = com.carrotsearch.randomizedtesting.RandomizedTest;*/

    // LUCENE-4456: Test that we fail if there are unreferenced files
    public class TestFailIfUnreferencedFiles : WithNestedTests
    {
      public TestFailIfUnreferencedFiles() : base(true)
      {
      }

      public class Nested1 : WithNestedTests.AbstractNestedTest
      {
        public virtual void TestDummy()
        {
          MockDirectoryWrapper dir = NewMockDirectory();
          dir.AssertNoUnrefencedFilesOnClose = true;
          IndexWriter iw = new IndexWriter(dir, new IndexWriterConfig(LuceneTestCase.TEST_VERSION_CURRENT, null));
          iw.AddDocument(new Document());
          iw.Dispose();
          IndexOutput output = dir.CreateOutput("_hello.world", IOContext.DEFAULT);
          output.writeString("i am unreferenced!");
          output.Dispose();
          dir.Sync(CollectionsHelper.Singleton("_hello.world"));
          dir.Dispose();
        }
      }

//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void testFailIfUnreferencedFiles()
      public virtual void TestFailIfUnreferencedFilesMem()
      {
        Result r = JUnitCore.runClasses(typeof(Nested1));
        RandomizedTest.assumeTrue("Ignoring nested test, very likely zombie threads present.", r.IgnoreCount == 0);

        // We are suppressing output anyway so dump the failures.
        foreach (Failure f in r.Failures)
        {
          Console.WriteLine(f.Trace);
        }

        Assert.AreEqual(1, r.FailureCount, "Expected exactly one failure.");
        Assert.IsTrue(r.Failures.Get(0).Trace.Contains("unreferenced files:"), "Expected unreferenced files assertion.");
      }
    }

}
